4. Locate the UEFI boot recovery jumper block (J2) on the system board.
CMOS clear
jumper (JP1)
UEFI boot backup
jumper(JP2)
System TPM physical
presence jumper(JP20)
5. Move the jumper (JP2) from pins 1 and 2 to pins 2 and 3 to enable the UEFI
recovery mode.
6. Reinstall the server cover; then, reconnect all power cords.
7. Restart the server. The system begins the power-on self-test (POST).
8. Boot the server to an operating system that is supported by the firmware
update package that you downloaded.
9. Perform the firmware update by following the instructions that are in the
firmware update package readme file.
10. Turn off the server and disconnect all power cords and external cables, and
then remove the server top cover (see “Removing the cover” on page 205).
11. Move the BIOS boot backup jumper (JP2) from pins 2 and 3 back to the
primary position (pins 1 and 2).
12. Reinstall the server top cover (see “Installing the cover” on page 206).
13. Reconnect the power cord and any cables that you removed.
14. Restart the server. The system begins the power-on self-test (POST). If this
does not recover the primary bank, continue with the following steps.
15. Remove the server top cover (see “Removing the cover” on page 205).
16. Reset the CMOS by removing the system battery (see “Removing the battery”
on page 273).
17. Leave the system battery out of the server for approximately 5 to 15 minutes.
18. Reinstall the system battery (see “Installing the battery” on page 275).
19. Reinstall the server top cover (see “Installing the cover” on page 206).
20. Reconnect the power cord and any cables that you removed.
21. Restart the server. The system begins the power-on self-test (POST).
22. If these recovery efforts fail, contact your IBM service representative for
support.
In-band automated boot recovery method
Note: Use this method if the BOARD LED on the light path diagnostics panel is lit
and there is a log entry or Booting Backup Image is displayed on the firmware
splash screen; otherwise, use the in-band manual recovery method.
Chapter 3. Diagnostics 173
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